PSI
PSI 11L
PSI 11L — 11.05 L L6 (123 × 155 mm bore × stroke) turbocharged & air-to-air charge-cooled natural gas / propane generator engine, 10.5:1 compression, 1179 kg dry. 150 kWe standby / – kWe prime @ 50 Hz. From the official PSI 11L spec sheet (LPG standby 115/135 kWe).
- Standby Power · 50 Hz
- 188 kVA
- Electrical Output
- 150 kWe
- Cylinders
- L6
- Displacement
- 11.05 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 180 | 150 | 187.5 |
| Standby Power | 180 | 150 | 187.5 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 200 | 175 | 218.8 |
| Standby Power | 200 | 175 | 218.8 |
PSI 11L generator set context
The PSI 11L is listed here as a natural gas generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 188 kVA / 150 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
Also searched as
Technical Specifications
| Brand | PSI |
| Model | 11L |
| Configuration | L6 |
| Cylinders | 6 |
| Displacement | 11.05 L |
| Compression Ratio | 10.5:1 |
| Dry Weight | 1179 kg |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | EPA |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the PSI 11L?
The PSI 11L is rated at 188 kVA standby / 188 kVA prime at 50 Hz (1,500 rpm); and 219 kVA standby / 219 kVA prime at 60 Hz (1,800 rpm).
Does the 11L run at 50 Hz or 60 Hz?
The PSI 11L is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the PSI 11L use?
The PSI 11L is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the 11L?
The PSI 11L is an inline-6 (6-cylinder) engine with a displacement of 11.05 L.
What emissions standard does the 11L meet?
The PSI 11L is certified to U.S. EPA Stationary emissions standards.
Is the PSI 11L still in production?
Yes — the PSI 11L is a current production model.
Is a datasheet available for the 11L?
Yes — an official PSI datasheet for the PSI 11L can be downloaded from this page.
Related Engines
Reference
- Canonical page
- /engines/psi-gas-11l
- Last database update
- 2026-06-29
- Manufacturer files
- 2 datasheets linked
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